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Validity, reliability, and responsiveness of a new short Visual Simplified Respiratory Questionnaire (VSRQ) for health-related quality of life assessment in chronic obstructive pulmonary disease

Authors:
Perez, T.; Arnould, B.; Grosbois, J. M.; Bosch, V.; Guillemin, I.; Bravo, M. L.; Brun, M.; Tonnel, A. B.; Group, Tiphon Study
Journal:
International Journal of Copd
Year:
2009
DOI